Coupling for chains.



P. G. RICHTER.

COUPLING FOR OHAKNS.

APPLICATION FILED HAR S, 1914.

Patented Dec. 1, 1914.

INVENTOR ii'hiil'illtij @FFKEE Trans cfreronrnn, or sremronn, oounncrrcur, ASSIGNOR are THE YALE & crowns IMANUFAC'I'UBING.COMIANY, OF STAMFORD, CONNECTICUT.

COUPLING FOR CHAINS.

1,119A53l3. rsy fi let t, Patented Dec. 1,19%.

' Application filed March 5, 191a serial no. 822304- To aZlw/mm-itmay concern: ends as shown, or by any other suitable 55 Be it known that 1, PAUL O. RICHTER, means. of Stamford, in the county of Fairfield and 'lhe upper ends of the side members 2 of State of Connecticut, have invented certain the yoke or clevis when brought oppo it new and useful Improvements in Couplings ach other, are separated suiliciently to erfor Chains; and I do hereby declare the fol- Inlt of the entrance between them of a link 60 lowing to be a full, clear, and exact descrip- 6 of the free end of the chain 7. These tion of the invention, such as will enable upper ends of the side members 2 are elonothers skilled in the art to which it appergated, and with their inner'sides curved to tains to make and use the same. form suhstantially to the shape of the My invention relates to an improvement end of a chain link. They are also provided 6 i d i th object being to provide a with holes to receive a bolt or key, as hereclevis which may be economically manufac- Hittite! referred the oblect of the 61011 tured, and which will be particularly adaptgatlon, and the curving of these ends, being 10 ed for connecting a hook, or other similar to provide the necessary sectional area. to

device, to the free end of a chain, the degiro strength folend strains, and the curv 79 sign of the clevis and its method of n1anulacing necessary to give the proper play for a facture being such that it shall be at least cnaln link. as strong as the links of the chainl he link on the free end of the chai i In the accompanying drawings, Figure 1 passed between the upper ends of the side is a view in side elevation, partly in section members 2, and the key 8 is passed through of my improvement; 2 is a view in elesaid side members and through the link, and

v tion, Fig. 0 is a view in plan, showis secured in place by a head on one end and ing the chain in section, and Fig. 4 is a a lock nut on the other, or in any other deside view and F 5 an end view of the bolt sired manner. i ken-Y3 It is desirable that the bolt or key 8 shown The usual method heretofore employed to detached in. Figs. 4 and 5 should be oblong make a connection ste -n a hook or other in cross section, with its greatest diameter i il d i 1 Reg d f a ch in, in'the direction of the lineof stress, so that 00 has been to pr'on 9 a li k which is then it may have greater strength to resist the threaded through I the one piece clevis or end of the hook, which will be imposed on the key when a and the cut ends of the link welded toload is,suspended'on the hook, and it may gather. Obviously, if this welding is done have a head 9 at one end and be reduced and 35 by a careless or unskilled workman, it will threaded at its other end 10 for the attachmean that the chain is week at this point. ment of a nut. My device provides a clevis which can be It is obvious that the shape of the various readily manufactured so that the strength elements going to make up this clevis is imoftheparts is known, and is fully equal to material, as they may be adapted to various lo the rest of the chain, and so made that it devices, either at-thelow or upper end of can be readily used to connect a hook to the the clevis. I free end of the chain by any unskilled per- Having fully described my'invention What son, the connection Toning such that itcannot I claim as new and desire to secure by Lethe made except in the proper mannon ters Patent, is v v 45 The yoke or clevis is made of two-indel. A clcvis composed of two'members, said pendent members 2, curved shovvn and members adapted to support a hook or yoke 10c enlarged at their lower ends to receive the at their lower ends, and bein provided with ends of the crosshesd l, carrying tiiehools elongated upperends sha ed so as to adapt I d, which is free to turn in said crosshea l. th m to a chain link or 0t er's imilar device, 5G and whichmey be secured to the crosshesd .and provided with holes through said elorn by the nut 5,,or in any other convenient gated op ends adapted for the entrance method. This crosshead-is mounted to turn of a'b'olthey.

in the side members 2 of the yoke or c'levis, 2. A cl 9 composed of two members, said.

and may be secured therein by upsetting its members ted to support a hook at their re end of the chain and shearing strains on both sides of the link 85 o the sand suspension device. I

a en;

lower ends, mm meoviderl with elongeteci In'tesfimony whereof, I have signed this upper ends sheped so as to eclept them to specification in the presence of two subscribthe supporting end of a suspension device, ing Witnesses.

and also provided with elongated holes, and

a key elongated in cross section and passing PAUL G. RICHTER. Witnesses: through said elongated holes and throngh SCHUYLER Mnnnn'r, WILLIAM P. l flosnmy. 

